mojo: MessageReceiver*::AcceptWithResponder() now take a unique_ptr to the responder

mojo/public/cpp/bindings/interface_endpoint_client.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef MOJO_PUBLIC_CPP_BINDINGS_INTERFACE_ENDPOINT_CLIENT_H_
 #define MOJO_PUBLIC_CPP_BINDINGS_INTERFACE_ENDPOINT_CLIENT_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 78 matching lines @@
   // and notifies all interfaces running on this pipe.
   void RaiseError();
 
   void CloseWithReason(uint32_t custom_reason, const std::string& description);
 
   // MessageReceiverWithResponder implementation:
   // They must only be called when the handle is not in pending association
   // state.
   bool Accept(Message* message) override;
   bool AcceptWithResponder(Message* message,
-                           MessageReceiver* responder) override;
+                           std::unique_ptr<MessageReceiver> responder) override;
 
   // The following methods are called by the router. They must be called
   // outside of the router's lock.
 
   // NOTE: |message| must have passed message header validation.
   bool HandleIncomingMessage(Message* message);
   void NotifyError(const base::Optional<DisconnectReason>& reason);
 
   // The following methods send interface control messages.
   // They must only be called when the handle is not in pending association
@@ skipping 74 matching lines @@
   base::ThreadChecker thread_checker_;
 
   base::WeakPtrFactory<InterfaceEndpointClient> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(InterfaceEndpointClient);
 };
 
 }  // namespace mojo
 
 #endif  // MOJO_PUBLIC_CPP_BINDINGS_INTERFACE_ENDPOINT_CLIENT_H_